Customer Retention

Post-Purchase Email Flow Using NPS to Increase CLV

First published Aug 3, 2021Updated September 7, 202612 min read
Juliana Jackson, Data Strategy and Experimentation Lead
Juliana Jackson
Data Strategy & Experimentation Lead
Published: Aug 3, 2021Updated: Sep 7, 2026
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Quick Answer
A post-purchase email flow that uses NPS sends five emails after the first order: an instant thank-you and order confirmation, a welcome email a couple of hours later, educational content around the customer's pain points, a shipping confirmation, and an NPS survey a couple of days after delivery. The NPS answer then decides the next branch. Detractors get a fast support follow-up to resolve the complaint; promoters get referral or loyalty invitations, a review request and, later, a relevant product suggestion. Until the order arrives, keep new customers out of promos and retargeting. Nexus by Omniconvert helps you adapt the flow to each customer segment and push those segments to Klaviyo.
Key Takeaways
  • The job of post-purchase email is engagement, not revenue; repeat revenue is the outcome of doing the engagement steps right.
  • First-time customers who have not received their order yet should be removed from promos, campaigns and retargeting and get only order-related emails.
  • The order confirmation email should go out instantly, because it answers the doubts customers feel right after buying from a new brand.
  • Send the NPS survey a couple of days after delivery, once the customer has had time to use the product.
  • NPS answers split the flow: detractors go to customer support for real-time recovery, promoters go to referral, loyalty, review and upsell emails.
7,000+ websites 15+ industries 248+ audit criteria 13 years of data

A post-purchase email flow built on NPS sends five emails after the first order (order confirmation, welcome, educational content, shipping confirmation and a post-delivery NPS survey) and then uses each customer's score to choose what comes next: a fast recovery path for unhappy customers, and referral, review and upsell emails for happy ones. The goal is to reassure new customers, fix problems early and earn the second order.

OK, so we speak a lot about what happens after that first purchase. Well, mostly, what doesn't happen.

The lack of valuable content, post-purchase personalization, and dirty data cause most direct-to-consumer (DTC) brands to lose the majority of their new customers after just one order. DTC brands acquire low- and high-value customers every month, but for most new customers, the chances to buy again are pretty steep. Check out these customer retention benchmarks to see where your store stands.

So you are probably asking yourself: how do I make a post-purchase email?

Building a post-purchase email flow based on NPS survey responses allows you to increase customer satisfaction. Being connected with your customers' feelings and thinking about your products and services lets you be more agile in addressing their complaints and in understanding post-purchase behavior.

Why should you use NPS to build post-purchase email flows?

Net Promoter Score (NPS) is one of the most straightforward ways to measure customer satisfaction, and email makes it easy to send the survey. Its biggest advantage in a post-purchase flow is speed: integrations can send a low score to customer support as a ticket right away, so objections are handled in real time. Each score also tells you which branch of the flow the customer should enter next.

Net Promoter Score (NPS) is one of the most straightforward ways to measure customer satisfaction, and email marketing enables an easy way to send the NPS surveys.

One of the most significant advantages of using NPS to measure customer satisfaction is that your company can treat objections in real time. NPS tool automation and integrations allow you to send tickets to customer support right away, so your teams can address complaints as soon as possible.

On the standard 0–10 scale, customers who answer 0 to 6 are detractors, 7 or 8 are passives, and 9 or 10 are promoters. For how to word the survey itself, see these NPS survey best practices and this NPS survey template.

What should a post-purchase email flow look like?

After the order is placed, email becomes one of the most important engagement channels with the customer. The flow should reassure the customer that they made the right choice, keep them informed until the order arrives, and measure their satisfaction once they have used the product. Until then, first-time customers should receive only emails about their order, not promos or retargeting.

Once the order is placed, email becomes one of the most important communication and engagement channels with your customer.

Well, in general, that is the purpose of email: to be an engagement channel, not a revenue generation channel. The revenue is just an outcome of doing those things right.

We all know what goes through our minds when we place an order, especially when we order for the first time from a new brand. It's called post-purchase dissonance.

What is post-purchase dissonance? We're on a rollercoaster that takes us from uncertainty and doubts to enthusiasm and hope that the solution we've just ordered is going to make our lives better.

Email marketing helps you reassure customers that they made the best choice when they chose to buy from you, and that you are there to support them at every step.

OK, so this is how it looks and how you can do it. You can use the flow below as a starting point for your brand's post-purchase journey. The original version was built with Shopify, an NPS survey tool, Klaviyo and LoyaltyLion.

Source: Omniconvert
Email When to send What it does How to read it
1. Thank-you and order confirmation Instantly Recaps the order and delivery time, restates brand values Answers the doubts right after purchase
2. Welcome to the community A couple of hours later Personal thank-you, how to reach support, what happens next Sets up trust and a support contact
3. Educational content While the order is on its way Content around pain points, optional quiz Keeps enthusiasm up and collects preferences
4. Shipping confirmation When the order ships Tracking details Answers "Where is my order?" before it is asked
5. Post-delivery NPS A couple of days after delivery Measures satisfaction with the product and brand The score decides the next branch

Before we get started, my advice is to unassign all new customers who bought from you for the first time and haven't received their order yet from any promos, campaigns, retargeting... basically anything unrelated to their order.

Why? Because otherwise:

  • You will annoy them with recommendations for new purchases when they haven't even received their products yet;
  • You will show that you don't care that they haven't gotten their order yet. You only want to make $$$;
  • You will increase your ticket numbers and overwhelm your customer support team;
  • Customer satisfaction will go down in pieces;
  • You might see a lot of unsubscribes;
  • You will lower their chances of placing a second order because of all of the above.

Instead, based on your shipping times, create a nurturing flow with emails or communication related ONLY to their order :)

Once they receive it, they have time to experience the products, and after you measure their happiness with you and your products, you can go ahead and drop that 20% off campaign that y'all love so much on them.

This is a very underrated strategy to keep some money in the house.

OK, let's get to it.

Email 1: Thank-you and order confirmation (sent instantly)

Send the order confirmation instantly. It lands at the moment a first-time customer feels the most doubt about buying from a new company, which is why these emails get so much attention. Recap what they ordered and the estimated delivery time, and remind them of your shared values and your mission as a brand in a way that is credible and meaningful to them.

These emails have the highest open rate because they tap into the cognitive dissonance that happens immediately after someone purchases from a new company for the first time.

To build and maintain trust, you need to send the first email instantly. Based on the customer attributes, recap what they ordered and the estimated delivery time. It's also an excellent time to remind them of your shared values and your mission as a brand, in a way that is credible and meaningful for your customers.

*I have a sneaky strategy that improves onboarding and Customer Lifetime Value, but I will save that for another article.

Email 2: Welcome to the community (a couple of hours later)

A couple of hours after the confirmation, send a welcome email that thanks the customer personally, gives them a warm onboarding and tells them how to reach you anytime. Let them know a tracking number will follow once the order ships. Shipping and delivery policies are important enough to deserve an email of their own, sent from your customer support address.

In the second email, sent a couple of hours after the order confirmation, you can thank your customers personally, make sure they have a warm onboarding, and tell them how they can get in touch with your company anytime they need you. Also, mention that they will receive an email with the tracking number for their order once it's shipped.

Short pitstop: I would make the shipping and delivery information an email of its own.

Why? Because fulfillment, shipping, and everything related to them are among the biggest problems in the industry. Many customer issues come from long shipping times that the brand doesn't communicate.

Tip: Send this email from your customer support email address. This helps customers understand and feel that they have access to you whenever they need it. Bonus: Sign the email with the name of one of your customer support reps.

Suggested format:

Headline: Important information about your order

Hi, {Customer name},
This is John from Customer Support!
We are very excited that you decided to give our products a go!
Because we want to make sure you are informed about all our policies regarding shipping and delivery, please see below all the info you need about this topic.
{enter your policies here}
If you have any questions, just reply to this email, or if you want to have a chat, just call us at {insert phone number}.
Chat with you soon,
John from {Brand name}

OK, now back to the flow...

In this onboarding email, you could also include a hook for a series of tips that resolve their biggest pain points. It could be sent as a quiz with multiple answers, where each answer reflects a customer expectation. Based on their answers, you'll be able to choose the best value proposition and target them with the best remarketing campaigns, via paid ads or content emails, once they have received their item and you have tracked their satisfaction with the item and your brand.

Email 3: Educational content around their pain points

While customers wait for their order, use the time to bring more value and keep their enthusiasm for the product. Send an educational video or another resource that shows you can support them with useful content. You can also add a short quiz and turn the answers into customer attributes for future remarketing campaigns.

While customers wait for their order to arrive, you can use the time to bring more value and maintain their enthusiasm for the product. It could be an educational video on YouTube or any other resource that shows your ability to support your customers with valuable content.

You can also use this step to find out more about their preferences via a short quiz, and transform their answers into customer attributes that you can use in future remarketing campaigns.

Email 4: Shipping confirmation

"Where is my order?" is the most frequent question customers ask before delivery, so the shipping confirmation email is a must-have. Its place in the flow can vary, but it must tell customers how to track their delivery. Transparent, consistent communication contributes to higher customer satisfaction.

With "Where is my order?" being the most frequent question people ask in the pre-delivery phase, the shipping confirmation email is a must-have. Its place in the email flow might vary, but it's vital to let your customers know how they can track their delivery. Transparent and consistent communication contributes to higher customer satisfaction.

PS: If you sent the shipping information email from Email 2, you can follow up as "John the Customer Support Rep" to tell the customer that their order has shipped.

Email 5: Post-delivery NPS (a couple of days after delivery)

A couple of days after delivery, send an NPS survey to measure how customers feel shortly after using your products. The answer decides what happens next. Detractors should reach your customer support tool right away so the complaint is resolved in real time. Promoters get a referral or loyalty invitation, a review request about two days later, and a relevant product suggestion about a week later.

The post-delivery NPS email is key for your customer satisfaction efforts. It allows you to measure your customers' sentiment shortly after they use your products or services.

Your future communication will flow differently depending on their answers to the NPS survey. Decide where passives (7 or 8) go before you build the branches: a 7 sits closer to the detractor path, an 8 closer to the promoter path. For more on each group, read promoters, passives and detractors.

If the score is low, you are talking to detractors

The next thing you want to do is find out more about their experience and resolve any customer complaint. Exploring the reasons behind their dissatisfaction allows you to avoid making the same mistakes in the future.

This is where you should ideally receive the NPS responses directly in Gorgias, Zendesk, or any other customer support tool you use. This way, you can address customer issues in real time without taking a hit on customer satisfaction and CLV.

If the score is high, you are talking to promoters

  1. Invite them to your referral or loyalty program
    Send the invitation right after their NPS response, while their satisfaction is fresh.
  2. Ask for a review
    Two days after their NPS response, send a review request for the products or services they had the chance to use.
  3. Suggest a better product
    One week later, suggest a better product or service based on their latest order as part of your upselling efforts. But be careful: you want to bring more value, not seem too pushy.

Based on your business model and metrics such as purchase frequency or average days between transactions, you can design an email marketing flow between orders, mixing educational content with relevant offers for your customers.

How customer profiling and quizzes support the flow

Customer profiling is an essential part of the post-purchase journey that is not strictly about email. Quizzes and pop-ups collect more data points about each customer, which you combine into a customer profile. With a profile, you can build personalized journeys instead of sending everyone the same flow.

Another essential part of the post-purchase journey that isn't necessarily related to email is customer profiling. It helps you collect more data points about your customers through quizzes and pop-ups to create a customer profile. Having a customer profile allows you to build personalized journeys for your customers.

On-site quizzes and pop-up surveys can run through Omniconvert Explore's survey capability, and the answers become attributes you can use in the email flow.

How to adapt the flow to each customer segment

Treat this flow as a starting point, then adapt it to each customer segment. Integrate your NPS solution with your email marketing tool, loyalty solution and eCommerce platform, so satisfaction data, order data and email journeys work together. Segmenting by recency, frequency and monetary value shows which customers need reassurance, which are ready for a loyalty invitation, and which are at risk of never coming back.

This is one of the possible workflows that help you create post-purchase email flows for your customers, measure their NPS, and keep customer satisfaction high throughout the relationship.

You can support your customer satisfaction efforts by integrating your NPS solution with your email marketing tool, customer loyalty solution, and eCommerce platform.

To adapt the journey to each segment, you need to know who is in it. Nexus by Omniconvert builds RFM segments from your order data, calculates customer lifetime value and predicts churn, then pushes those segments directly to Klaviyo, Meta Ads and Google Ads, so a first-time buyer, a loyal promoter and an at-risk customer each enter the right flow.

Send each customer segment the right post-purchase flow with Nexus by Omniconvert.

See Nexus →

To learn how to adapt the journey to each customer segment, we recommend taking the CVO course in CVO Academy, where Valentin Radu details the blueprint that helps you nail customer journey optimization.

Frequently Asked Questions

1What is a post-purchase email flow?

A post-purchase email flow is an automated series of emails sent after a customer places an order. It confirms the order, welcomes the customer, shares shipping and delivery information, delivers useful content while they wait, and asks how satisfied they are once the product arrives. Its purpose is engagement and trust. Revenue from repeat orders is the outcome of doing those steps well.

2Why use NPS in a post-purchase email flow?

Net Promoter Score is one of the most straightforward ways to measure customer satisfaction, and email is an easy way to send the survey. Each NPS answer tells you which branch of the flow the customer should enter next: a recovery path for unhappy customers or an advocacy path for happy ones. Integrations can also send low scores straight to customer support as tickets, so complaints are handled in real time.

3When should you send the NPS survey after a purchase?

Send it a couple of days after delivery, not after the order is placed. The customer needs time to receive and use the product before they can judge it. Asking earlier measures their feelings about the checkout or the wait, not about your product and service.

4How many emails should a post-purchase flow have?

Juliana Jackson's flow uses five emails before the NPS branches: an instant thank-you and order confirmation, a welcome-to-the-community email a couple of hours later, educational content around their pain points, a shipping confirmation, and a post-delivery NPS survey. The exact number and order depend on your shipping times and business model.

5Should new customers get promotional emails before their order arrives?

No. Remove first-time customers who have not yet received their order from promos, campaigns and retargeting. Sending new offers before the first order arrives annoys customers, raises support tickets, increases unsubscribes and lowers the chance of a second order. Send only order-related communication until they have received the product and you have measured their satisfaction.

6What should you do with detractors in a post-purchase flow?

Find out more about their experience and resolve the complaint. Ideally, detractor responses go straight into your customer support tool, such as Gorgias or Zendesk, so the team can act in real time. Understanding why they are dissatisfied also helps you avoid making the same mistakes with future customers.

7What should you do with promoters in a post-purchase flow?

Invite them to your referral or loyalty program, ask for a product review about two days after their NPS response, and about a week later suggest a relevant product based on their latest order. Keep the focus on adding value so the upsell does not feel pushy.

8What are the NPS categories?

On the standard 0 to 10 Net Promoter Score scale, customers who answer 0 to 6 are detractors, 7 or 8 are passives, and 9 or 10 are promoters. NPS is the percentage of promoters minus the percentage of detractors. In a post-purchase flow, decide which branch passives enter based on what you want to learn from them.

One flow, many possible journeys

This is one of the possible workflows for post-purchase email: confirm and reassure, welcome, educate, keep customers informed about shipping, measure their satisfaction with NPS, and let the answer decide what happens next. Connect your NPS solution with your email marketing tool, loyalty solution and eCommerce platform, and customer satisfaction stays high throughout the relationship, which is what earns the second order.

Juliana Jackson, Data Strategy and Experimentation Lead
Data Strategy & Experimentation Lead
My journey into the digital world started back in 2010 when I ventured into sales, convincing folks to move their property ads from newspapers to the internet. From then, a curiosity sparked. A curiosity that has fueled my 14-year exploration of all things digital marketing. From B2B SaaS to eCommerce and ed-tech, I’ve navigated these landscapes, diving into the data, unraveling the mysteries behind user behavior, and embracing the realm of AI and customer data as my playground. Today I write about Technical Marketing, Product, Mobile Apps, and Experimentation, and I love sharing insights gleaned from my experiences.

Adapt your post-purchase flow to every customer segment

Nexus by Omniconvert turns your order data into RFM segments, customer lifetime value and churn predictions, and pushes those segments directly to Klaviyo, Meta Ads and Google Ads. Built on data from 7,000+ websites across 15+ industries, with 248+ audit criteria and 13 years of data.